Boiler construction



Jan. 27, 1931. R1. ADAMS 1,790,215

BOILER CONSTRUCTION Filed June 18', 1926 2 Sheets-Sheet l Jan. 27, 1931.R. J. ADAMS 15..

BOIEER CONSTRUCTION Filed June 18, 1936 I 2 Sheets- Sheet 2 15construction herein shown and described the disclosure hereingiven.

Patented Jan. 27, 1931 nALEIGH J. ADAMS; or CHICAGO, I'LL-more BOTIJER}CONSTRUCTION a Application m June 18,

10 so arranged that they may be connected; to

each other by a relatively large'number of water tubes Whiclrmay bequickly and-easily installed. 1

Many other objects and advantages of the will be obvious to thoseskilled inthe art from I To this end myinvention consistsein the novelconstruction, arrangement andvicombi- 2 nation of parts herein shown anddescribed, and more particularlypointed out in the claims. p, a g In thedrawings, wherein like reference characters indicate like orlcorresponding vparts: Y Y

Fig. 1 is a vertical,longitudinal section taken through a boilerembodying one form of the invention; and

, Fig. '2 is a vertical longitudinal section taken" through a boilerembodying another 7 form ofthe invention;

Referring for the present to Fig. 1, where; in Ihave shown boilerembodying a preferred form of the invention, the reference character 10designates generally the setting of the boiler. In this instance,thesetting 1 comprises side walls 11' and frontand rear Walls 12 and 13,respectively, the setting being provided with any suitable grate, asindicated at 1 5. v

r The improved boiler comprises apluralityof steam and water drums '17,18', 19 and 20 ofwhieh the drum 18 is a mud drum and the dra ns '17 and19. are front and rear steam drnms, respectively. As shown,the'drn1ns 17and 19 are prefer'ably'disposed at the same elevation and communicatedirectly with each other througha bankof tubes 21.' The intermediatedrum 20 is preferably disposed below and between the drums'17and19. The

1926. Serial No. 116,856.

Inud drum 1 8 isjthej lowermost drumand is preferably disposedslightlyin front of the drum 19 and slightly to therear of the drum 20. Thedrums 17 and 1 8'con1municatedirectly with each other througha bank ofinclined water tubes "24 which are set atthe greatest incline the headroom will allow "in order to getthejniairin uniheating surface in thisbank asthis bank is subjected to the hottest gases. The drums 1 7 andQO-are con- 0 nected directly to each otherby a bank of i tubes26 whichare preferably inclined so that they will drain intothedrum 20, A bankof tubes 27 connectthe drum withtheinud drum [1-8 and the drunr19 isconnectedto'themud drum by a bank of tubes '29. It will be noted that arelatively large number of tubes 29ers provided, this construction beingpermitted by the 'position,- of the drum 20.

Reference ismadetomy'copendingapplica- 7 ,jtion, Serialg l lo. 568, 114filed J une 14, 1922,

. patented July 20,1926,Patentllo. 1,592,818.,

wherein I have shown a boiler of similarconstructl-on, wherein thethreerear drums aredlsposed n substantmlly vertical ahgn 7 ment so thatit isrelatively dificult to'provide a large number ofltubes connecting theuppermost drum with theanud'drum.

\ Thehot gases may be directed through the several banks of tubesfin anydesired in'an- 118 but-in thisembodiment of the invention baffles '30,3,1;anjd 32 are provided. As shown,

the baffle.30 is disposed in front of the bank of tubes 27 andex'tendsfrom the drum 20 to the mud. drum 18. Thebaflie 31 isdisposed infrOHt ofthe oftubes'29' and extends from tl'ie drum to a poii itintermet be 27,after which the hot gases will flow upward through the bank of tubes 29and be discharged from'the boiler through the flue 33. It willbe'note'dthat baffle 32 insures that all of the hot gases will come in contactwith tubes'27, In practice,the dru'ms and a tubes of the boiler shown inFig. 1 may beassembled in less time and with less effort than the tubesand drums of the boiler shown in the copending application.

I ater is preferably admitted to the boilerthrough a pipe 36 whichprojects into the drum 19 and steam escapes from the boiler through afitting 37 which communicates with a dry pipe 38 of wellknownconstruction disposed within the drum I19. I

The operation of the above described boiler is substantially as follows:ater is admit ted to the drum 19 and travels through the tubes 29 and tothe mud drum 18, and then duplicated in the setting 40 and are identified by the reference characters 41, 42, 43

and 44, respectively. Theaforementioned banks of tubes 21, 24,26, 27 and29 are also duplicated in the setting 40 and are identified by thereference characters 46, 47, 48, 49 and 50, respectively. Feed water isadmitted to the rearsteam drum 43iby a pipe 52 and steam escapes from,the boiler through a fitting 53 provided upon the drum 43, afdr'y pipe54 of well known construction being disposed within the drum 43tofdeliver steam tothe fitting 53.

The boiler shown in Fig. 2 also embodies a preferred form of theinvention, but, in this instance, I. provide a plurality .of baflieswhich are disposed differently than those disposed in Fig.1. Thus, inthe boiler shown in Fig. 2. I-have provided. haflles 57, 58,69, 60, 61,62. 6 3 and 64., The bafile 57 extends between the drum 44, and'thefront steam drum 41,the bafilc being disposed immediately above thetubes 48. The baffle 58 eX- tends between the drums 43 and 44 and thebattle 59 extends from the mud drum 42 to a point intermediate the drums42 and 41. As showmthe baffle 59 is disposed in close proximity to theuppermost row tubes 47 and has the laterally extending baffle 60associated with it, the bailie 60 being adapted to guide the hot gasesinto the bank of tubes 49. .The ballieb'l extends from the drum 44 to apoint intermediate the drums 44 and 42, the baffle 61 being disposed inclose proximity to. the rear row of tubes 49. The baffle 62 extendsrearwardly from the bafile 61 and is adapted to guide the hotgases intothe bank of tubes 50. The baffles 63 and 64 extend from the 'rearwall ofthe setting 40 to the rear row of tubes 50. I

It is readily understood that when the drum. j

tubes -50,'whereupon the hot gases will flow.

upward along thetubes 50 and be discharged from'the setting. I haveindicated a flue 66 in the top wall of the setting 40 and a travclinggrate 68 in the combustion chamber 69 -formed in-the setting 40.However, it is to be understood that I am limited to thisconstructi'ononly to the extent indicated in the. I

appended claims.

5 I'Iaving'thus described my invention, it is obvious that variousimmaterial modifications mayv be'inade in the same without'dev partingfrom the spirit of my invention; hence I do not wish to be understood asliI'nitingmyself to the exact form, construction, arrangement andcombination of parts herein shown and described or uses mentioned.

hat I claim as new and desire to secure by Letters Patent'is'z f 1. in adevice of the class described, a

boiler including an enclosure l-raving a combustion chamber at thebottomthereof, and a fine at the top thereof, acombmed water 111- let andsteam outlet drum adjacent the fiue,'a

second drum on a level with the said combined jdrum, a bank of tubes forfeeding steam only from the second drum to the combined drum,

a mud drum rearwardly of the combustion chamber, a bank of tubesconnecting the combined drum and the mud drum for conducting ncomingwater directly to. the mud drum, a

relatively long bank of tubes connecti ngthe mud drum with-the seconddrum and being located above the combustion'chamber to have contactthroughout their lengths with the hot gases rising directly fromthecombustion chamber, a fourthdrum located on a plane below the combined.drum andthe second drum and out of verticalalinement with both tOPQIIHlthot gases topass ent rely around said fourth drum, a bank of tubesconnecting the mud drum with the fourth drum,'a relatively shortforwardly inclined bank of tubes connecting the fourth drum with the,second drum and arranged in the-path of travel of the hot gases directlyafter theyhave passed through the said relatively long bank of tubes,and baffles for causing the gases to travel downwardly along the bank oftubes connecting the mud drum and the fourth drum and upwardly along thebank-of tubes connecting the mud drum and the combined 2. In, a deviceof the class described, a boiler including. an enclosure-having acombust-ion chamber atthe bottom thereof, and a flue at the top thereof,a combined water inlet .and steam outlet drum adjacent the flue, a

second drum on a level with the said .com bined drum, a bank of tubesfor feeding steam only from the second drum to the combined located on aplane below th-e'combined drum and the second drum and out of Verticalallinementwith both topermit hot gases to pass druni, a mud" drumrearwardly of thecoinbustion chamber, a, bank of tubes connecting thecombined drum and the muddrum for,

conducting incoming water directly to the mud drum, a relatlvelylong-bank of tubes connecting the mud drumwith'the second drum andbeinglocated above the combustion chamber to have contact throughout-theirlengthshwith the hot gases rising directly from the combustion chamber,a fourth drum entirely around said fourth drum, a bank of drum with thesecond drum and arranged in the path of travel of the hot gases directlyafter they have passed through the said re-la vtubes connecting the muddrumtwithlthe fourth drum, a relatively short forwardly inclined bankoftubes connecting the fourth tively long bank of tubes, a bafileextending longitudinally of, and close to the bank of tubes connectingthe mud drum with the g fourth drum for permitting hotv gases to'travelvertically through the relatively long bank of tubes withoutcontacting with the tubes connecting the mud drum, and thefourth drum,and an additional baffle extend ing lengthwise of the last mentionedbank of tubes and the bank of tubesconne'cting the combined drum and themud drum for causing the gases to travel first through the bank of tubesconnecting the mud drum and the 7 fourth drum and then through the bankof tubes connecting the mud drum and the combined drum. 7

In testimony whereof, I have hereunto signed my name.

RALEIGH J. ADAMS. V

